Since July 19, 2024, the Colorado Rockies have the highest ERA by a team, with an ERA of 5.27.

	TEAM	ERA	G	W%	W	L	SO	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Rockies	5.27	83	.361	30	53	586	0	19	722.2	799	423	460	126	285	37	1	3,191	26	7.30	3.55	2.06	1.57	18.4	8.9	1.50	.312	5.73	9.95
2	Marlins	4.88	85	.435	37	48	679	0	19	758.0	753	411	453	119	317	42	10	3,315	18	8.06	3.76	2.14	1.41	20.5	9.6	1.41	.294	5.38	8.94
3	White Sox	4.77	83	.217	18	65	683	0	4	722.1	734	383	409	105	348	35	15	3,202	28	8.51	4.34	1.96	1.31	21.3	10.9	1.50	.310	5.10	9.15
4	Diamondbacks	4.67	85	.612	52	33	785	0	23	757.2	757	393	418	96	259	31	19	3,264	23	9.32	3.08	3.03	1.14	24.1	7.9	1.34	.316	4.97	8.99
5	Nationals	4.65	84	.405	34	50	670	0	20	739.2	767	382	421	93	272	26	3	3,215	28	8.15	3.31	2.46	1.13	20.8	8.5	1.40	.313	5.12	9.33
6	Rangers	4.55	86	.512	44	42	735	1	27	758.0	733	383	410	104	246	48	14	3,254	32	8.73	2.92	2.99	1.23	22.6	7.6	1.29	.297	4.87	8.70
7	Angels	4.51	85	.376	32	53	648	0	19	745.2	713	374	415	114	320	34	26	3,214	32	7.82	3.86	2.03	1.38	20.2	10.0	1.39	.286	5.01	8.61
8	Red Sox	4.50	87	.448	39	48	689	0	21	776.2	772	388	441	109	272	43	13	3,351	21	7.98	3.15	2.53	1.26	20.6	8.1	1.34	.296	5.11	8.95
9	Pirates	4.47	87	.414	36	51	695	0	22	768.2	727	382	423	85	295	52	15	3,313	24	8.14	3.45	2.36	1.00	21.0	8.9	1.33	.294	4.95	8.51
10	Phillies	4.38	86	.523	45	41	761	1	17	758.2	769	369	388	113	247	29	3	3,251	21	9.03	2.93	3.08	1.34	23.4	7.6	1.34	.312	4.60	9.12
11	Twins	4.34	86	.407	35	51	798	0	15	765.0	733	369	401	99	242	40	7	3,272	26	9.39	2.85	3.30	1.16	24.4	7.4	1.27	.303	4.72	8.62
12	Orioles	4.33	85	.482	41	44	689	0	16	745.2	733	359	394	98	255	21	6	3,184	33	8.32	3.08	2.70	1.18	21.6	8.0	1.32	.299	4.76	8.85
13	Athletics	4.26	84	.488	41	43	700	0	23	752.1	719	356	389	88	282	43	12	3,241	34	8.37	3.37	2.48	1.05	21.6	8.7	1.33	.297	4.65	8.60
14	Reds	4.15	85	.471	40	45	718	0	20	749.2	657	346	374	115	237	42	8	3,144	24	8.62	2.85	3.03	1.38	22.8	7.5	1.19	.267	4.49	7.89
15	Cardinals	4.09	86	.488	42	44	669	0	25	768.1	696	349	376	85	246	23	16	3,192	19	7.84	2.88	2.72	1.00	21.0	7.7	1.23	.282	4.40	8.15
16	Yankees	4.02	84	.583	49	35	805	0	26	756.1	665	338	372	95	299	29	8	3,201	23	9.58	3.56	2.69	1.13	25.1	9.3	1.27	.289	4.43	7.91
17	Dodgers	4.00	86	.663	57	29	777	0	32	764.1	690	340	381	104	288	26	8	3,231	46	9.15	3.39	2.70	1.22	24.0	8.9	1.28	.288	4.49	8.12
18	Cubs	3.94	86	.570	49	37	670	0	22	762.1	712	334	348	102	267	21	5	3,217	16	7.91	3.15	2.51	1.20	20.8	8.3	1.28	.283	4.11	8.41
19	Blue Jays	3.91	85	.482	41	44	706	0	19	754.2	628	328	359	101	265	40	11	3,119	24	8.42	3.16	2.66	1.20	22.6	8.5	1.18	.263	4.28	7.49
20	Braves	3.78	86	.488	42	44	867	0	17	763.2	696	321	347	95	245	32	11	3,194	20	10.22	2.89	3.54	1.12	27.1	7.7	1.23	.307	4.09	8.20
21	Royals	3.69	86	.488	42	44	734	0	23	763.1	683	313	347	76	251	39	17	3,192	28	8.65	2.96	2.92	0.90	23.0	7.9	1.22	.290	4.09	8.05
22	Brewers	3.64	85	.576	49	36	772	0	24	764.1	666	309	351	107	279	29	14	3,223	20	9.09	3.29	2.77	1.26	24.0	8.7	1.24	.275	4.13	7.84
23	Mariners	3.63	84	.512	43	41	761	0	15	749.1	647	302	333	100	206	23	10	3,084	21	9.14	2.47	3.69	1.20	24.7	6.7	1.14	.274	4.00	7.77
24	Guardians	3.62	85	.518	44	41	729	0	23	751.0	647	302	338	96	266	29	10	3,130	22	8.74	3.19	2.74	1.15	23.3	8.5	1.22	.274	4.05	7.75
25	Giants	3.61	85	.541	46	39	808	2	24	751.0	627	301	319	74	301	32	7	3,154	30	9.68	3.61	2.68	0.89	25.6	9.5	1.24	.285	3.82	7.51